Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2008-01-08
2008-01-08
Awad, Amr A. (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C348S173000
Reexamination Certificate
active
10660818
ABSTRACT:
Methods and apparatus for mitigating or substantially eliminating pixel burn-in on phosphor-based display panels. A visual display includes a display installation and a computer. The display installation may include a display panel having including a plurality of pixels each with a bit depth and an interface for receiving a video input and for driving the display panel. The computer is configured to determine a primary burn value for each of the pixels for a primary period of time, and to determine a secondary burn value for each of the pixels for a secondary period of time. The computer determines the secondary burn values such that when a pixel is driven at the secondary burn value thereof for the secondary period of time, an average value of the pixel for the primary and secondary periods of time is approximately equal to one-half of the bit depth of the pixel.
REFERENCES:
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patent: 2002/0030674 (2002-03-01), Shigeta
patent: 2003/0142212 (2003-07-01), Grimes et al.
patent: 2004/0165064 (2004-08-01), Weitbruch et al.
patent: 11-175022 (1999-04-01), None
Awad Amr A.
Farjami & Farjami LLP
Holton Steven E
IP Mining Corporation
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